Tunable photonic crystals with semiconducting constituents
Tunable photonic crystals with semiconducting constituents
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DOI：
10.1109/cleoe.2000.910282
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发表时间：
2000-08
期刊：
影响因子：
--
通讯作者：
F. Ramos-Mendieta;P. Halevi
中科院分区：
文献类型：
--
作者：
F. Ramos-Mendieta;P. Halevi
仅提供摘要形式。我们提出，如果自由载流子密度足够高，基于光子晶体的光子带结构可以被调谐。在这种情况下，半导体的介电常数是频率依赖性的，并且它还通过等离子体频率依赖于温度T和杂质浓度N。然后光子带结构对温度和掺杂非常敏感;甚至有可能消除光子带隙。
Summary form only given. We propose that the photonic band structure of semiconductor-based photonic crystals can be made tunable if the free-carrier density is sufficiently high. In this case, the dielectric constant of the semiconductor is frequency-dependent, and it also depends on the temperature T and the impurity concentration N through the plasma frequency. Then the photonic band structure is very sensitive to temperature and doping; it is even possible to obliterate a photonic gap.